Some textures of geyser plume particles use the wrong color in some spots

There are two almost identical colors (C3C3C3 & C1C1C1) in the Geyser Plume 03 & 04 & 05 textures if you look closely. HEX #C3C3C3 being used everywhere on the particles textures except these two which may leads to think that Mojang made a mistake.

For the geyser_plume_05, the HEX #C6C6C6 is used on one pixel.

Below you can a full comparaison of where the two colors are used and the one that used the most across the texture.